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Texas Instruments LM5149
LM5149 80-V, Synchronous, Buck, DC/DC Controller with Ultra-Low IQ and Integrated Active EMI Filter
Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 5.5-72 V |
| Ausgang 1 | 5 V / 10 A |
| IC-Revision | A |
Beschreibung
The LM5149 is a 80-V, ultra-low IQ synchronous buck DC/DC controller for high-current, single-output applications. The controller uses a peak current-mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation. The LM5149 can be set up in interleaved dual-phase mode with accurate current sharing for high-current applications. The device can operate with VIN as low as 3.5 V, at nearly 100% duty cycle if needed.
Eigenschaften
- Functional Safety-Capable
- Documentation available to aid functional safety system design
- Two integrated EMI mitigation mechanisms
- Active EMI Filter for enhanced EMI performance at lower frequencies
- Selectable dual random spread spectrum (DRSS) for enhanced EMI performance across
Typische Anwendungen
- Test and measurement
- Industrial transport
- Building automation
- Wireless infrastucture
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | Montageart | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LHMI SMT Speicherdrossel, 2.2 µH, 14.3 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-LHMI SMT Speicherdrossel | Induktivität2.2 µH | Performance Nennstrom14.3 A | Sättigungsstrom 118.1 A | Sättigungsstrom @ 30%38.7 A | Gleichstromwiderstand7 mΩ | Eigenresonanzfrequenz27 MHz | MontageartSMT |